Best Practice - Read file, edit contents, write new file

MrEyes
10th April 2008 16:45 UTC

Best Practice - Read file, edit contents, write new file
Hello all,

I am after some best practice advise relating to reading a text file, replacing some information and then writing the data to a new file.

As an example, my source file contains:


com.iplanet.services.debug.level=message
com.iplanet.services.debug.directory=c:/Path/To/Debug

com.iplanet.am.naming.url=https://naming.com/url
com.iplanet.am.naming.ignoreNamingService=true

com.iplanet.am.server.protocol=https
com.iplanet.am.server.host=naming.com
com.iplanet.am.server.port=443

com.iplanet.am.notification.url=http://localserver.com:3700/LocalService/service.svc

com.iplanet.am.cookie.name=iPlanetDirectoryPro
com.iplanet.am.cookie.encode=true

com.iplanet.am.jssproxy.trustAllServerCerts=true

com.iplanet.am.version=6.1

com.iplanet.security.SecureRandomFactoryImpl=com.iplanet.am.util.SecureRandomFactoryImpl
com.iplanet.security.SSLSocketFactoryImpl=netscape.ldap.factory.JSSESocketFactory
com.iplanet.security.encryptor=com.iplanet.services.util.JCEEncryption

com.sun.identity.webcontainer=IAS7.0

I need to change the line:

com.iplanet.services.debug.directory=c:/Path/To/Debug

to be

com.iplanet.services.debug.directory=c:/NewPath/Somewhere/Else

and

com.iplanet.am.notification.url=http://localserver.com:3700/LocalService/service.svc

to

com.iplanet.am.notification.url=http://localserver.com:3700/NewName/service.svc

I originally started of with something like this:


ClearErrors
FileOpen $0 "${sourcefile}" r
FileRead $0 $1
FileClose $0

${WordReplace} $1 "c:/Path/To/Debug" "c:/NewPath/Somewhere/Else" "E+" $R0
${WordReplace} $R0 "/LocalService/" "/NewName/" "E+" $R1

ClearErrors
FileOpen $0 "${targetfile}" w
FileWrite $0 $1
FileClose $0

However this resulted in some weird results (the target file only contained the first line of the source file)

So after hunting around the wiki I haven't found a definitive way of doing this. So can anybody point me in the right direction.

EDIT : After some further hunting, I came across the following:

http://nsis.sourceforge.net/More_adv...e_text_in_file

Which seems to work. All I need to do is copy the source for to the target location and then use these functions to make the edits.

fabian.rap.more
10th April 2008 19:42 UTC

use ReadIniStr to read the path as it will be easier. then use Copy to copy the file(s) to the target location and then use WriteIniStr to change it in the file.

Afrow UK
10th April 2008 19:47 UTC

You cannot use ReadINIStr if there are no section headers. Use ConfigWrite instead.

Stu

fabian.rap.more
10th April 2008 20:43 UTC

Originally posted by Afrow UK
You cannot use ReadINIStr if there are no section headers. Use ConfigWrite instead.

Stu

how did i miss that?? yes ConfigWrite is the way to go on this

MrEyes
11th April 2008 16:07 UTC

Originally posted by Afrow UK
You cannot use ReadINIStr if there are no section headers. Use ConfigWrite instead.

Stu

I did try config write however one of the changes I needed to work it would have required some workarounds.

In summary this line in the source file:

[code]
com.iplanet.am.notification.url=http://localserver.com:3700/NewName/service.svc
[code]

The "localserver.com" is unique for every install, so I need to keep that and only change the "/NewName/" part. So I would have had to use configread, then do string replacement, then a config write. Due to this, in the end it was easier to use the item in the edit. Unless of course there is a "gotcha" somewhere that I haven't spotted.

Afrow UK
11th April 2008 16:12 UTC

Can you not use ConfigRead + WordReplace + ConfigWrite?

Stu

ssam
27th May 2008 12:32 UTC

i have the same problem, i uused configread and configwrite, and he changed the first entry, he fond. but the entry i want to change, can be more then one times in the File. And he should be change every entry.

How can i change the other entrys, or why he change only one entry?

Afrow UK
27th May 2008 12:35 UTC

WriteINIStr should be your solution according to your other topic.

Stu

ssam
27th May 2008 12:41 UTC

can i use writeinistr with every Filetyp?

ssam
28th May 2008 08:49 UTC

ok now i have exactly the same Problem and cant use writeinistr, because i have no [Sections]

and if i use Configwrite, he adds it at the end of the File. but i want to replace a substring


  ... test@"Database name" ...

i want change the database name.

pospec
28th May 2008 08:52 UTC

You have to use StrReplace macro. http://nsis.sourceforge.net/StrReplace_v4

ssam
28th May 2008 11:18 UTC

ok i will test it